High speed spindle



Nav. 8,v 1938. L. J. JORDANy ET AL HIGH SPEED SPINDLE Filled July 1o, 1935 nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn IHMLIN Fis. 5.

INVENTORs Y LAVERN J. JORDAN CLARfzNcf; C. WAL-rms Mmmm( ATTORNEY Patented Nov. 8, 1938 UNITED STATES PATENT OFFICE HIGH SIEED SPINDLE Application July 10, 1935, Serial No. 30,654

17 Claims.

This invention relates to improvements in capspinning and similar frames.

At the high speeds at which these spinning frames operate, vibration is a serious handicap to successful operation. Vibration may be brought about by several factors, such, for example, as inherent unbalance in the rotating parts or in the replaceable bobbins, unbalance caused bythe thread or yarn as it is wound on the bobbin, unbalance caused by the critical speed of the spinning frame (which varies because of the varying distance between supports on the spindle due to the reciprocation of the lifting rail), and unbalance caused by the rapidly moving belt on the whirl, particularly where the belt tension varies. Excessive vibration may prevent the operation of the spinning frame at the desired high speeds because of these and other mechanical diiiculties and in some cases may even interfere with the successful twisting of the yarn or thread. High operating speeds of the spinning frame also occasion dilculties in adequately lubricating the bearings under the severe conditions imposed by the said high speeds and the stresses caused by the vibrations.

One of the primary objects of this invention is to minimize the eilects of vibrations at high speeds by means of an improved method of mounting the spindle frame mechanism on both the lifting and xed rails. Another object of the invention is to provide an improved means of adequately lubricating the spinning frame mechanism, said means being simple in operation and requiring no adjustment. Further objects will in part be obvious and in part disclosed in the following detailed description of one of several possible embodiments of the invention, in the drawing accompanying which:

Figure l is a sectional elevation of a cap-spinning frame corresponding to the line I-I of Figure 2;

Figure 2 is an enlarged sectional plan taken on the line 2-2 of Figure 1;

Figure 3 is a sectional elevation taken on the line 3-3 of Figure 2 of the mounting showing the spinning frame bolster on the lifting rail with parts omitted for the sake of clearness;

Figure 4 is an enlarged sectional plan taken on the line 4-4 of Figure l showing means for preventing relative rotation of the bolster and the spindle; and

Figure 5 is a sectional elevation of a brake actuating mechanism taken substantially on the line 5--5 of Figure 2.

In the drawing, in which like numbers refer to like parts in all figures, spindle I, resiliently connected to the flxed rail 3, serves to support cap 4. Bolster 5, which is resiliently mounted on lifting rail 2, supports rotatable whirl 6, which is driven by some suitable means, as by belt 1. The whirl 6 is mounted on anti-friction bearings 8 and 9.' Thread bobbin i0 is supported on the bobbin-tube II of the whirl 6 and is held in piace by means of pins I2. Relative rotation of the spindle I with respect to the bolster 5, which is adapted to slide on the spindle I, is prevented by some such means as the pin I3, in the bolster 5, which slides in a keyway I4 in the spindle I. As shown in Figures 1 and 4 the pin I3 is held in place by means of the spring ring I5 iitting into groove I6 of the bolster.

One embodiment oi.' the improved method of mounting the bolster on the rail comprises, as shown in Figures 1 and 3, a flanged portion I I on the bolster 5, which is constantly urged against the lifting rail 2 by means of a plurality of springs I8. These springs bear against the other side of the lifting rail 2 and against the heads of the bolts I9, which are tapped into the ilange I1 and locked with jam nuts 20. A resilient washer 2| made of some material such as cork is preferably provided between the flange II and the rail 2 to permit additional resiliency and aid in damping vibrations. Bolt 'holes 22 in the rail 2 may conveniently be somewhat larger than the bolts i9 and the opening 23 in the rail 2 through which the base of the bolster 5 projects may likewise be somewhat larger than the bolster to permit a small amount of relative movement of the bolster with respect to the rail. By adjustment of the bolts I9, the spring pressure andv consequent freedom of bolster movement with respect to the rail can be controlled as desired. This method of mountingv the bolster on the rail, which is one of the features of the invention, makes possible a resilient, vibration-absorbing connection permitting limited oscillatory movement of'the bolster.

On the rail 3the spindle mounting comprises a stop 24 mounted on the spindle I held against the rail by vspring 25, whichjearggiainst the V axial position on the spindle shaft i. This adjustability, while not necessary, is desirable; permitting, for instance, increased or decreased spring pressure, if less or more freedom of the spindle l' at this point is desired, and permitting change of the vertical adiustmentoi' the spindle ir wii; is desired to change ine position or ine cap with respect to the range 'of bobbin positions.

The spindle l, as shown, is non-rotatable, since itis prevented from rotating in the bolster 8, which itself is non-rotatable because it is held by bolts I8.

. In the base of the bolster l is a lubricant reservoir 28 which communicates by a passage 30 with the lubricant receiving pockets 3l and 32 in the spindle, more especially when the bolster l mounted on the lifting rail 2 is in its uppermost position with respect tol the spindle I, which position. is illustrated in Figure l of the drawings. When .the bolster '8 is in its lowermost position with respect to the spindle I the top edge of the bolster 5 is slightly below the lubricant-receiving pockets 3| and 32, allowing the lubricant to run out and down over the upper bearing 8. This lubrication of the upper bearing is facilitated by the fact that the top edge 33 oi the bolster, which may, if desired, be beveled, will scrape on any lubricant on the spindle I as the bolster 8 moves upward with respect. to the spindle l.

After the lubricant haslpassed through the upper'bearing 8, `part of it is thrown oi! by centrifugal force to the inside wall '34 oi the whirl while part of it runs-down the outside surface 35 of the bolster. The lubricant then progresses downward due to the action ofgravity to the lower bearing 3 which it lubricat, passes through said bearing, and back into the reservoir 28. In the illustrated embodiment, the lower bearing 9 is also lubricated by lubricant drawn up from the reservoir 28 by a pumping action of the moving elements of the bearing 3 as it rotates. When the lubricant pockets 2|' anii`32,l filled with lubricant, slide within the bolster due to the relative reciprocation of the bolster and spindle, the contacting surfaces of the bolster and spindle will also be lubricated.

kThus complete lubrication of all moving parts in the spinning frame is secured. The higher the speed at which the spinning frame operatS. the better the lubrication will be, since as the speed -of rotation is increased the pumping action to the lower bearing becomes more pronounced and as the speed of reciprocation is also increased, more lubricant is supplied over the top of the bolster to y the bearings. It can be seen that no adjustments of the lubricating apparatus are required, that the apparatus is simple and automatic in operation, and that there is nothing to get out of order.

Because of the speeds at which spinning frames operate, they tend to idle for a long time due to inertia effects when the driving power is disconnected. Therefore, in order to save time when it is desired to stop the whirl to change bobbins or for other reasons, some means for applyin; a braking force to the whirl is desirable. In`

is threaded into adjusting nut 44 provided with a wedge portion 45 ntting into a corresponding depression in the member 38. This wedge portion 45 causes the member 38 to be self-adjusting with respect to the pin 40. On the other end of the pin 40 is pivotally mounted a means of actuating the brake, such as a handle 48, which has a camshaped portion 41 bearing against the outer surface of the member 31 in a guiding groove 48 provided there. When the handle 46 is turned to a position such as dotted position 48', the pin 40 draws the brake arm 38 toward the whirl, while the cam'41 forces the brake arm 31 toward the whirl, and the brake apparatus takes some position as indicated by the dot-and-dash lines of Figure 2. When the brake is thus operating, the

contact surfaces 49 of the brake arms, which may be of some friction-resisting-material such as leather, are forced against theI whirl, bringing it toa rapid halt. When the handle 48 is returned to its off position, as shown in full lines, the springs 42 force the brake arms 31 and 38 away from the whirl and disengage the brake. Of course the handle 46 may be operated mechanically or by hand.

In tests, spinning frames embodying the invention have been successfully operated for periods of many hours at speedsas high as 15,000 R. P. M., with thread bobbins weighing several pounds deliberately onset as much as 31g of an inch to. provide excessive vibration effects. No mechanical failure due to vibrations or marked heating of `the bearings resulted. The fact that these spinning frames operates successfully under such eX- tremely bad vibratory conditions at speeds more than twice as high as those found in ordinary practice indicates that the resilient method of mounting of the spinning frame on both rails and means of lubrication as embodied in this givention constitute notable advancements in this eld.A

In the above explanation the improvements of the present invention have been described in connection with a cap-spinning frame' in which' the bolster is mounted on the lifting rail while the spindle shaft is mounted on the fixed rail, so that while the frame is operating the cap t remains stationary while the bolster and bobbin are reciprocated. It is obvious that the reverse action can be obtained without departing from the spirit of the invention; 4that is, the rail 2 on which the bolster is mounted can be made the fixed railand the other rail 3 can be made the lifting rail, so that the frame can operate with the bobbin` stationary, as far as vertical movement is concerned, while the cap reciprocates. It is obvious that the invention is not restricted to capspinning frames of the particular type illustrated, but that on the contrary it may be applied to any spinning frame of the type in which a driven bobbin is moved vertically with respect to and about a vertical spindle.

The apparatus described above represents but a single embodiment of the many that go to make up the present invention. Various changes and modifications may be made without departing from the spirit of the invention or from the scope of the claims. It is intended that the patent shall cover, by suitable expression in the appended claims, whatever features of patentable novelty reside in the invention.

What is claimed is:

1. Spinning apparatus comprising spaced iigred and lifting rails, a spindle, a bolster disposed about said spindle for relative reciprocatory movement between said bolster and said spindle, a whirl rotatably mounted on said bolster, means resiliently connecting said spindle and one of said rails, and means resiliently connecting said bolster and the other of said rails.

2. Spinning apparatus comprising spacedilxed and lifting rails, a spindle, a bolster slidably mounted about said spindle, a whirl rotatably mounted on said bolster, yielding means resiliently connecting said spindle and one of said rails. and yielding means resiliently connecting said' bolster and the other of said rails, said yielding means cooperating with each other to permit limited oscillatory movement of said spindle.

3. Spinning apparatus o1' the character described in claim 1 in which the means connecting the spindle and the rail comprises an opening through which said spindle projects, stops mounted on said spindle on opposite sides of said rail and a spring disposed between one of said stops and said rail.

4. Spinning apparatus of the character described in claim 1 in which the means connecting the spindle and the rail comprises an opening through which said spindle projects, stopsmounted on said spindle on opposite sides of said rail, and a spring disposed between one of said stops and said rail, at least one of-said stops being adjustable on said spindle.

5. Spinning apparatus of the character described in claim 1 in which the means connecting the bolster with the other of said rails comprises a plurality of springs constantly urging the bolster against said rail.

6. Spinning apparatus of the character described in claim 1 in which the means connecting the spindle and the rail comprises an. opening through which said spindle projects, stops mounted on said spindle on opposite sides of said rail, and a spring disposed between one of said stops and said rail, at least one of said stops being adjustable on said spindle, and in which the means connectingthe bolster and the other of said rails comprises a plurality of springs constantly urging the bolster against said rail.

'7. Spinning apparatus comprising spaced fixed and lifting rails, a spindle,` a bolster slidablyl l'mounted about said spindle, a whirl rotatably mounted on saidbolster, means connecting said spindle and said xed rail, and means resiliently connecting said bolster and said lifting rail, said ilrstmeans comprising an opening through which -the spindle projects, stops mounted on said spindle on opposite sides oi' said rail, and a spring disposed between one of said stops and said rail, at least one oi' said stops being adjustable on said spindle.

, 8. Cap-spinning apparatus comprising spaced fixed and lifting rails, a cap, a cap-supporting spindle, a bolster slidably mounted about said spindle, a whirl rotatably mounted on said bolster, means connecting said spindle and said ilxed rail, said means comprising an opening through which said spindle projects, stops mounted on said spindle on opposite sides of said rail and a spring disposed between one of said stops and said rail,

and means connecting said bolster and said lifting rail, said means comprising a plurality ot springs constantly urging the bolster against said 9. Spinning apparatus comprising spaced xed and lifting rails, a spindle, a bolster slidably mounted about said spindle, a whirl rotatably mounted on said bolster, means connecting said spindle and one of said rails, and means connecting said bolster and the other of said rails comprising a resilient member disposed between said bolster and said rail and a plurality of springs constantly urging said bolster against said rail. 10. Spinning apparatus comprising spaced xed and lifting rails, a spindle, a bolster slidably mounted on said spindle, a whirl rotatably molmted 'on said bolster, means connecting said spindle and one of said rails, and means resiliently connecting said bolster and the other of said rails.

11. Spinning apparatus comprising spaced fixed and lifting rails, a spindle, a bolster slidably mounted labout said spindle, a whirl rotatably mounted on said bolster, means resiliently connecting saidbolster and one of said rails, and means connecting said spindle and the other of said rails permitting oscillatory movement of said spindle with respect to said rail.

12. Spinning apparatus comprising spaced fixed and lifting rails, a spindle, a bolster slidably mounted about said spindle, a whirl rotatably mounted on said bolster, means connecting said bolster and one of said rails,and means resiliently connecting said spindle and the other of said rails.

13. Spinning apparatus comprising spaced ilxed and lifting rails, a spindle, a bolster slidably mounted about said spindle, a whirl rotatably mounted on said bolster, means resiliently connecting said spindle and one of said rails, and means' connecting said bolster and the other of said rails permitting oscillatory movement of said bolster with respect to said rail.

`14. Spinning apparatus comprising spaced ilxed and lifting rails, a spindle, a bolster slidably Amounted about said spindle, a whirl rotatably mounted on said bolster, means connecting said bolster and one of said rails, and means 'connecting said spindle and the other of said rails comprising an opening in said rail through which the spindle projects, a stop on said spindle, and spring means urging said stop against said rail.

15. Cap spinning apparatus comprising a cap, a spindle supporting said cap, a bolster slidably mounted on said spindle, a whirl rotatably mounted on said bolster, a rail, means resiliently connecting said bolster to said rail, and means to which the lower end of said spindle is non-rigidly connected.

16. Cap spinning apparatus comprising a cap, a spindle supporting said cap, a bolster slidably mounted on said spindle, a whirl rotatably mounted on said bolster, a rail, means resiliently connecting said bolster to said rail, and means to which the lower end of said spindle is connected.

17. Cap spinning apparatus comprising a cap, a spindle supporting said cap, a bolster slidably mounted on said spindle, a whirl rotatably mounted on said bolster, a rail, means resiliently connecting said bolster to said rail, and means tov which the lower end of said spindle is resiliently connected.

LAVERN J. JORDAN. CLARENCE C. WALTERS. 

